CN107625410B - Pot cover subassembly and pressure cooker - Google Patents
Pot cover subassembly and pressure cooker Download PDFInfo
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- CN107625410B CN107625410B CN201610570510.1A CN201610570510A CN107625410B CN 107625410 B CN107625410 B CN 107625410B CN 201610570510 A CN201610570510 A CN 201610570510A CN 107625410 B CN107625410 B CN 107625410B
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Abstract
The invention discloses a pot cover assembly and a pressure cooker, wherein the pot cover assembly comprises an elliptical pot cover for covering an elliptical pot body, a screwing guide plate and a buckle assembly, wherein the screwing guide plate and the buckle assembly are arranged on the upper surface of an inner cover of the pot cover; the buckle subassembly includes the buckle that is used for the hasp pot body, and with the buckle is connected and with spout slidable mounting's cooperation portion, the buckle be with the ellipse circular of pot cover periphery adaptation, cooperation portion is in close the rotatory drive of baffle soon down, can slide in the spout, in order to drive the buckle along the radial flexible activity of rotating part. The buckle assembly provided by the invention can adapt to the locking of the oval pressure cooker.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a pot cover assembly and a pressure cooker.
Background
In order to ensure the safety of users, pressure cookers are generally provided with a locking device to prevent the cover from being opened by misoperation of users when the pressure in the pressure cooker is high. The locking device comprises an inner cover, a screwing guide plate and a buckle, wherein the screwing guide plate is rotatably arranged on the inner cover, and the buckle is used for clamping the pot cover and the pot body. Be equipped with the spout on closing the baffle soon, be equipped with the cooperation portion that stretches into in the spout on the buckle, when closing the baffle rotation soon, the two long sidewalls of spout respectively with cooperation portion butt to make the buckle along the radial concertina movement who closes the baffle soon, thereby lock or loosen the pot cover. For an oval pressure cooker, because the oval is not circumferentially symmetrical, the existing buckle cannot be suitable for locking the oval cooker cover and the cooker body.
Disclosure of Invention
The invention mainly aims to provide a pot cover assembly, aiming at realizing the locking of an oval pot cover and a pot body.
In order to achieve the purpose, the pot cover assembly provided by the invention comprises an elliptical pot cover for covering the elliptical pot body, a screwing guide plate and a buckle assembly, wherein the screwing guide plate and the buckle assembly are arranged on the upper surface of an inner cover of the pot cover; the buckle subassembly includes the buckle that is used for the hasp pot body, and with the buckle is connected and with spout slidable mounting's cooperation portion, the buckle be with the ellipse circular of pot cover periphery adaptation, cooperation portion is in close the rotatory drive of baffle soon down, can slide in the spout, in order to drive the buckle along the radial flexible activity of rotating part.
Preferably, the buckle assembly further includes a guide plate extending along a radial direction of the rotating portion, the buckle is fixedly connected with the guide plate, and the matching portion is disposed on the guide plate; the inner cover is provided with a guide rail, the extending direction of which is parallel to the radial telescopic direction of the buckle assembly, and the guide plate is slidably arranged on the guide rail.
Preferably, the guide plate includes a body extending along the radial direction of the rotating portion, two sides of the body extending along the radial direction of the rotating portion are respectively turned upwards to form an upper turning portion, and the upper ends of the two upper turning portions are turned backwards to form two side wings; the guide rail comprises two supporting bars and two limiting plates, the two supporting bars and the two limiting plates are arranged on the upper surface of the inner cover, the two limiting plates are located between the two supporting bars, the extending directions of the two limiting plates and the two supporting bars are parallel to the radial telescopic direction of the buckle assembly, and the heights of the limiting plates are lower than the heights of the supporting bars; the two side wings are arranged on the two support bars corresponding to the sliding frames, and the two upward turning parts are respectively correspondingly abutted against the opposite inner sides of the two limit plates.
Preferably, the sliding chute is provided with a curve driving section, and the distance between the curve driving section and the rotating part is gradually changed, so that when the matching part slides along the curve driving section, the buckle can stretch and move along the radial direction of the rotating part.
Preferably, the curve driving section is arranged in a sine curve or a cosine curve.
Preferably, the pot cover subassembly still includes the auto-lock subassembly, the auto-lock subassembly includes shielding part and connects the sliding part that extends up on the shielding part, be equipped with the confession on the closure baffle sliding mounting's of sliding part guide slot soon, the guide slot has effective stroke section, effective stroke section with distance is the gradual change setting between the rotating part, so that the sliding part is along when effective stroke section slides, the flexible activity of shielding part level.
Preferably, the inner cover is provided with a guide groove for the shielding portion to slide, and the guide groove is arranged in a long shape along the sliding direction of the shielding portion.
Preferably, the shielding portion includes a guiding portion, a shielding plate and a connecting rod connecting the guiding portion and the shielding plate, the sliding portion is mounted on the guiding portion, the guiding portion is slidably mounted in the guiding groove, and the connecting rod and the shielding plate extend out of the guiding groove from an inner end wall of the guiding groove.
Preferably, the effective stroke section is a straight line section, an arc section, a sine curve section or a cosine curve section.
Preferably, the sliding groove further comprises a sliding groove invalid stroke section, the curve driving section corresponds to the sliding groove invalid stroke section, so that when the matching portion of the buckle slides to the curve driving section, the sliding portion of the self-locking assembly slides to the sliding groove invalid stroke section, the sliding groove invalid stroke section corresponds to the effective stroke section, so that when the matching portion of the buckle is located at the sliding groove invalid stroke section, the sliding portion of the self-locking assembly is located at the effective stroke section.
Preferably, the invalid stroke section of spout is located the one end of curve drive section, the invalid stroke section of spout be the sharp setting and with the tangent of curve drive section, in the invalid stroke section of spout, certainly the invalid stroke section of spout one end is injectd the other end and is supplied the gliding circular arc route of cooperation portion of buckle, the circular arc route with the distance is a definite value between the rotating part.
Preferably, the curve driving section includes a head end and a tail end, the head end with the distance between the rotating part, the tail end with the distance between the rotating part is little, the invalid stroke section of spout is located the head end.
Preferably, an included angle between the invalid stroke section of the sliding chute and the radial expansion direction of the buckle is 60 degrees to 120 degrees.
Preferably, the tail end of the curve driving section is provided with a starting section, an arc path for the matching part of the buckle to slide is defined from one end of the starting section to the other end in the starting section, and the distance between the arc path and the rotating part is a certain value.
Preferably, the guide slot idle stroke section is the setting of circular arc section, just the guide slot idle stroke section with distance is a definite value between the rotating part.
The invention also provides a pressure cooker which comprises a cooker cover assembly, wherein the cooker cover assembly comprises an elliptic cooker cover used for covering the elliptic cooker body, and a screwing guide plate and a buckle assembly which are arranged on the upper surface of an inner cover of the cooker cover, the screwing guide plate is rotatably arranged on the inner cover, a rotating part and a sliding groove are arranged on the screwing guide plate, and the rotating part is connected with the cooker cover; the buckle subassembly includes the buckle that is used for the hasp pot body, and with the buckle is connected and with spout slidable mounting's cooperation portion, the buckle be with the ellipse circular of pot cover periphery adaptation, cooperation portion is in close the rotatory drive of baffle soon down, can slide in the spout, in order to drive the buckle along the radial flexible activity of rotating part.
According to the invention, the buckle is arranged in an elliptical shape, so that the locking of the elliptical pressure cooker can be adapted, and the inner cover of the pressure cooker and the cooker body are stably buckled.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a lid assembly of the present invention, wherein the pressure cooker is in a closed state;
FIG. 2 is a schematic structural view of a snap assembly of the lid assembly of FIG. 1;
FIG. 3 isbase:Sub>A cross-sectional view of the lid assembly of FIG. 1 taken along line A-A;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C;
FIG. 5 is a schematic view of the structure of the guide sleeve shown in FIG. 4;
FIG. 6 is a schematic structural view of the spacing washer of FIG. 4;
FIG. 7 is a schematic view of the construction of the inner lid of the lid assembly of FIG. 1;
FIG. 8 is a cross-sectional view of the lid assembly of FIG. 1 taken along line B-B;
FIG. 9 is an enlarged view of a portion of FIG. 8 at D;
FIG. 10 is a schematic view of the self-locking assembly of FIG. 9;
fig. 11 is a schematic structural view of another embodiment of the lid assembly of the present invention, wherein the pressure cooker is in an open-lid state;
FIG. 12 is a cross-sectional view of the lid assembly of FIG. 11 taken along line E-E;
FIG. 13 is a cross-sectional view of the lid assembly of FIG. 11 taken along line F-F;
FIG. 14 is an enlarged view of a portion of FIG. 13 at G;
fig. 15 is a coupling view of a screw-in guide of the pot lid assembly of fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a pressure cooker which comprises a cooker body and a cooker cover assembly covering the cooker body. In the invention, the pan body and the pan cover of the pan cover component are both in an elliptical shape.
As shown in fig. 1 and 2, the pot cover assembly comprises a pot cover, a screwing guide plate 2, a screwing handle 3 and a buckle assembly 4, the pot cover comprises an inner cover 1, the screwing guide plate 2 is rotatably installed in the pot cover, namely, installed on the inner cover 1, a rotating part 21 (shown in fig. 15) is arranged on the screwing guide plate 2, and the rotating part 21 is connected with the screwing handle 3. Usually, the rotating portion 21 is a through hole, a connecting shaft is installed in the through hole, the other end of the connecting shaft is connected with the rotating handle 3, and the rotating handle 3 rotates and simultaneously drives the rotating guide plate 2 to rotate. In some embodiments, the lid assembly further comprises a lid plate assembly 5 connected to the underside of the inner lid 1.
Be equipped with spout 22 on the baffle 2 that closes soon, buckle subassembly 4 is including being used for the hasp the buckle 41 of inner cup 1 and the pot body, and locate on the buckle 41 and with spout 22 slidable mounting's cooperation portion 42, cooperation portion 42 is in close soon under the rotatory drive of baffle 2, can slide in spout 22, in order to drive buckle 41 along the radial flexible activity of rotating part 21.
In the embodiment of the invention, the inner cover 1 is oval, and the buckle 41 is oval matched with the periphery of the pot cover. Specifically, the cross-section of buckle 41 is the U-shaped that the opening is inwards, buckle 41 includes upper plate 411 and lower plate 412 that upper and lower and relative setting, and upper plate 411 and lower plate 412 all are oval-shaped, and cooperation portion 42 is located upper plate 411 to the activity that makes progress wears to establish spout 22. The upper clamp plate 411 is located between the inner lid 1 and the cover plate assembly 5, and the lower clamp plate 412 is used to abut against the lower surface of the flange or flange on the pot body, thereby clamping the inner lid 1 and the pot body.
In the invention, the buckle 41 is arranged in an elliptical shape, so that the locking of the elliptical pressure cooker can be adapted, and the inner cover 1 of the pressure cooker and the cooker body are stably buckled.
As shown in fig. 4 to 6, in order to reduce the sliding resistance of the fitting portion 42 in the slide groove 22, the fitting portion 42 is generally cylindrical. For example, a rivet may be provided on the snap 41 to form the mating portion 42. The matching part 42 is sleeved with a guide sleeve 421, and the matching part 42 is connected with the sliding chute 22 in a sliding manner through the guide sleeve 421. Since the matching part 42 is in contact with the side wall of the sliding chute 22 through the guide sleeve 421, the wear of the matching part 42 can be avoided, and only the guide sleeve 421 needs to be replaced according to the wear condition of the guide sleeve 421, and the whole buckle assembly 4 does not need to be replaced, thereby being beneficial to saving the cost. The inner circumference of the guide sleeve 421 is provided with a spring piece 422, and the matching part 42 presses the spring piece 422 to make the matching part 42 and the guide sleeve 421 matched more closely. A limiting gasket 423 is fixed at the free end of the matching part 42, and the limiting gasket 423 is located on the upper surface of the screwing guide plate 2 and is used for limiting the axial movement of the matching part 42 and the guide sleeve 421. The limit washer 423 and the fitting portion 42 are fixed by a connecting member such as a screw.
Referring to fig. 2 again, in order to provide a radial guiding function for the buckle assembly 4 and prevent the buckle assembly 4 from shifting during radial telescopic movement, in an embodiment, the buckle assembly 4 further includes a guide plate 43 extending along the radial direction of the rotating portion 21, the buckle 41 is fixedly connected with the guide plate 43, and the matching portion 42 is disposed on the guide plate 43; the inner cover 1 is provided with a guide rail, the extending direction of which is parallel to the radial telescopic direction of the buckle assembly 4, and the guide plate 43 is slidably mounted on the guide rail.
Referring to fig. 2 and 7, specifically, the middle of the upper surface of the inner lid 1 is recessed downward to form a recessed area 101, a supporting rib 11 having a notched ring shape is disposed in the recessed area 101, the supporting rib 11 is disposed corresponding to the periphery of the screwing guide plate 2, and the screwing guide plate 2 is located on the supporting rib 11. All be equipped with the passageway of stepping down on the perisporium of depressed area 101 and on the brace rod 11, deflector 43 certainly the passageway of stepping down stretches into in the depressed area 101, and stretch into in the region that the brace rod 11 encloses. The guide rail sets up on the diapire of depressed area 101, and certainly the passageway of stepping down stretches out depressed area 101.
In one embodiment, the guide plate 43 includes a body 431 extending along the radial direction of the rotating portion 21, two sides of the body 431 extending along the radial direction of the rotating portion 2121 are first turned upwards to form two upward turned portions 432, and upper ends of the two upward turned portions 432 are turned backwards to form two side wings 433; the guide rail comprises two supporting bars 13 and two limiting plates 14 which are arranged on the upper surface of the inner cover 1, the two limiting plates 14 are positioned between the two supporting bars 13, the extending directions of the two limiting plates 14 and the two supporting bars 13 are parallel to the radial telescopic direction of the buckle assembly 4, the two limiting plates 14 and the two supporting bars 13 are respectively arranged in parallel and at intervals, and the height of each limiting plate 14 is lower than that of each supporting bar 13; the two side wings 433 are disposed on the two supporting bars 13 corresponding to the sliding frames, and the two upward folded portions 432 are respectively abutted against the opposite inner sides of the two limiting plates 14 (in this embodiment, the opposite sides of the two supporting bars 13 are inner sides). In this embodiment, the supporting strip 13 is used to support the side wings 433. The upturned portion 432 abuts against the inner sides of the limiting plates 14, so that the body 431 of the guide plate 43 is clamped between the two limiting plates 14, the side wings 433 are circumferentially limited, and the buckle assembly 4 is prevented from swinging. Meanwhile, since the height of the limit plate 14 is lower than that of the support bar 13, that is, the upturned portion 432 is only partially abutted against the inner side of the limit plate 14, the contact area is reduced compared with the full abutment mode, and thus the friction is reduced.
For reducing frictional force, each the top surface of support bar 13 is the interval respectively and the parallel two protruding muscle 12 that are equipped with, protruding muscle 12 is followed support bar 13 length direction extends, flank 433 follows protruding muscle 12 top surface slides. The arrangement of the convex ribs 12 reduces the contact area between the supporting strip 13 and the side wings 433, so that the friction force between the supporting strip and the side wings is reduced, and the radial telescopic movement of the buckle assembly 4 is smoother. For further improving the limiting effect, the bottom surface of the side wing 433 can be provided with a convex strip which is positioned between the two convex ribs 12.
In order to avoid interference with the buckle 41, the thickness of the supporting strip 13 outside the recessed area 101 is smaller than that of the supporting strip 13 inside the recessed area 101, and the top surface of the supporting strip 13 outside the recessed area 101 is flush with the top surface of the supporting strip 13 inside the recessed area 101. Since the supporting bars 13 located outside the depressed regions 101 are thin, in order to reinforce the strength thereof, reinforcing ribs are connected between the top surfaces of the supporting bars 13 located outside the depressed regions 101 and the inner cap 1.
As shown in fig. 1, 8 and 9, generally, a float hole 15 is formed on the top surface of the lid assembly, the float hole 15 extends downward to penetrate through the lid assembly, a jacking float 6 and a display float 7 are arranged in the float hole 15, the jacking float 6 is positioned below the display float 7, and both the jacking float 6 and the display float 7 can move up and down in the float hole 15.
When the pressure in the pressure cooker is higher, the higher pressure jacks up the jacking floater 6 to enable the jacking floater 6 to move upwards and contact with the display floater 7, and simultaneously drives the display floater 7 to move upwards to enable the display floater 7 to be exposed outside, so that a user can visually sense the pressure in the pressure cooker, and the cooker cover is prevented from being opened when the pressure in the pressure cooker is higher.
Referring to fig. 10, in order to avoid the lid from being opened by a user through a misoperation during the high-pressure operation of the pressure cooker, in an embodiment, the pressure cooker further includes a self-locking assembly 8, the self-locking assembly 8 includes a shielding portion 81 and a sliding portion 82 connected to the shielding portion 81 and extending upward, the rotary-closing guide plate 2 is provided with a guide groove 23 for slidably mounting the sliding portion 82, and the sliding portion 82 can slide in the guide groove 23 under the rotation driving of the rotary-closing guide plate 2, so as to drive the shielding portion 81 to horizontally extend and retract. The shielding portion 81 extends horizontally in the direction of the jacking float 6, and the shielding portion 81 can extend into the float hole 15 under the driving of the sliding portion 82 to limit the upward movement of the jacking float 6.
As shown in fig. 1, 3, 8 and 9, when the pressure cooker is in a closed state, the buckle 41 locks the inner lid 1 and the cooker body, and the shielding part 81 is located outside the float hole 15. When pressure is great in the pressure cooker, jack-up float 6 moves up, and is higher than shielding portion 81, and at this moment, if rotating hander 3, because the float is to shielding portion 81's effect of keeping out makes shielding portion 81 can not stretch into in the float hole 15, also promptly the twist guide 2 can not rotate, buckle 41 can not the unblock for the pot cover can't be opened, thereby has avoided the inside high pressure during operation of pressure cooker user to uncap and has caused danger. As shown in fig. 11 to 14, when the pressure cooker is opened, the latch 41 is opened, and the inner lid 1 and the cooker body are not locked, and at this time, since there is no pressure, the push-up float 6 is located at the lowermost position, and the shielding portion 81 is extended into the float hole 15.
To reduce the sliding resistance, the sliding portion 82 is preferably cylindrical.
Referring to fig. 7 again, in an embodiment, a guiding groove 16 is disposed on the inner lid 1, the shielding portion 81 is slidably mounted in the guiding groove 16, and the guiding groove 16 is disposed in a long shape along the sliding direction of the shielding portion 81. In this embodiment, the guide groove 16 is located in the recessed area 101 of the inner lid 1. By providing the guide groove 16, the shielding portion 81 slides in the guide groove 16, so that the shielding portion 81 is horizontally limited.
Referring to fig. 7 and 10, the shielding portion 81 includes a guide portion 811, a shielding plate 813, and a connecting rod 812 connecting the guide portion 811 and the shielding plate 813, the sliding portion 82 is mounted on the guide portion 811, the guide portion 811 is slidably mounted in the guide slot 16, and the connecting rod 812 and the shielding plate 813 are disposed to protrude from the inner end wall of the guide slot 16 out of the guide slot 16. In this embodiment, the inner end wall of the guiding slot 16 is provided with a relief hole 161, the connecting rod 812 extends out of the guiding slot 16 through the relief hole 161, and when the shielding portion 81 slides to the first state in a direction away from the sliding portion 82, the guiding portion 811 abuts against the inner end wall of the guiding slot 16. Due to the abutting action of the inner end wall of the guide groove 16 against the guide portion 811, the connecting rod 812 can be prevented from moving horizontally by an excessively large distance. In this embodiment, the guide portion 811 has a plate shape, the connecting rod 812 has a cylindrical shape, and the sliding portion 82 is located on the guide portion 811. A shielding plate 813 is further connected to the free end of the connecting rod 812, and the shielding plate 813 is used for shielding the float hole 15. The end face of the shielding plate 813 close to the float hole 15 is arc-shaped, and the arc-shaped end face is matched with the circumferential surface of the jacking float 6. When a user rotates the handle 3 with a large pressure in the pressure cooker, the arc-shaped end surface is abutted against the circumferential surface of the jacking floater 6, and the collision damage to the jacking floater 6 can be reduced in a mode that the circumferential surface is abutted against a plane.
Referring to fig. 15, in the above embodiment, the sliding slot 22 has a curved driving section 222, and the distance between the curved driving section 222 and the rotating portion 21 is gradually changed, that is, the curved driving section 222 is a non-circular curve, so that when the matching portion 42 of the buckle 41 slides along the curved driving section 222, the buckle 41 stretches and retracts along the radial direction of the rotating portion 21. The curved drive section 222 is preferably arranged in a sine curve or a cosine curve.
When the rotating handle 3 drives the rotating-closing guide plate 2 to rotate, the sliding groove 22 slides relative to the matching portion 42, and when the matching portion 42 is located in the curved driving section 222, at least one side of two long side walls of the curved driving section 222 abuts against the matching portion 42, for example, when the long side wall close to the rotating portion 21 abuts against the matching portion 42, the matching portion 42 is subject to an outward extrusion force of the long side wall and moves away from the rotating portion 21, so as to drive the buckle 41 to move outwards, so as to release the locking of the pot cover and the pot body (as shown in fig. 11, fig. 11 is a schematic structural view of an unlocked state of the buckle 41); when the long sidewall far from the rotating portion 21 abuts against the engaging portion 42, the engaging portion 42 is pressed inward by the long sidewall and moves toward the rotating portion 21, so as to drive the buckle 41 to move inward, thereby locking the pot cover and the pot body (as shown in fig. 1, fig. 1 is a schematic structural view of the buckle 41 in a locked state).
In the present invention, since the sliding slot 22 has the non-circular curve driving section 222, when the matching portion 42 of the buckle 41 slides along the curve driving section 222, the buckle 41 can extend and retract along the radial direction of the rotating portion 21, and the matching portion 42 slides more smoothly in the curve driving section 222, so that the radial extending and retracting movement of the buckle 41 is smoother.
The sliding groove 22 further includes a sliding groove ineffective stroke section 221, in the sliding groove ineffective stroke section 221, an arc path for the engaging portion 42 of the buckle 41 to slide is defined from one end of the sliding groove ineffective stroke section 221 to the other end, and a distance between the arc path and the rotating portion 21 is a certain value, so that when the engaging portion 42 slides in the sliding groove ineffective stroke section 221, the buckle 41 does not displace in a radial direction. In this embodiment, the engaging portion 42 of the buckle 41 is in clearance fit with the two long side walls of the sliding chute ineffective stroke section 221, and a sufficient clearance is reserved between the two long side walls and the engaging portion 42 to ensure that a stroke track of the engaging portion 42 passing through the sliding chute ineffective stroke section 221 is an arc, that is, the engaging portion 42 is not stressed at this time, and the buckle 41 has no displacement in the radial direction.
In one embodiment, the sliding groove ineffective stroke section 221 is disposed at one end of the curve driving section 222, so that the sliding groove ineffective stroke section 221 and the curve driving section 222 are connected more smoothly, and the sliding resistance of the matching portion 42 is reduced, the sliding groove ineffective stroke section 221 is disposed in a straight line and tangent to the curve driving section 222.
In the above embodiment, an included angle between the chute ineffective stroke section 221 and the radial expansion direction of the buckle 41 is 60 degrees to 120 degrees. In this embodiment, if the included angle is too large, that is, the angle of the end of the chute ineffective stroke section 221 away from the curve driving section 222 is relatively large, and the curve driving section 222 is tangent to the chute ineffective stroke section 221, the curve driving section 222 needs to be bent relatively greatly towards the rotating portion 21, that is, the bending angle of the curve driving section 222 is relatively large, and the sliding angle of the matching portion 42 in the curve driving section 222 is large, so that the sliding of the matching portion 42 is not facilitated. If the included angle is too small, when the matching part 42 switches and slides between the curve driving section 222 and the chute invalid stroke section 221, the difference of the motion states of the matching part 42 is small, and the radial expansion of the matching part 42 is not facilitated. Therefore, in this embodiment, an included angle between the chute ineffective stroke section 221 and the radial expansion direction of the buckle 41 is preferably 60 degrees to 120 degrees.
In other embodiments, the chute ineffective stroke section 221 is an arc section, and a distance between the arc section and the rotating portion 21 is a certain value, that is, a center of the arc section coincides with a rotation center of the rotating portion 21.
The curve driving section 222 includes a head end and a tail end, a distance between the head end and the rotating portion 21 is smaller than a distance between the tail end and the rotating portion 21, and the chute idle stroke section 221 is provided at the head end. In this embodiment, when the fitting portion 42 of the buckle 41 is located at the head end, the buckle 41 is in a locked state, that is, the buckle 41 is located at a position close to the rotating portion 21; when the engagement portion 42 of the catch 41 is located at the trailing end, the catch 41 is in an open state, i.e., the catch 41 is located away from the rotating portion 21.
In an embodiment, the tail end is further provided with an actuating section 223, the actuating section 223 corresponds to a transition section, the engaging portion 42 is not radially displaced in the actuating section 223, that is, in the actuating section 223, an arc path for the engaging portion 42 of the buckle 41 to slide is defined from one end to the other end of the actuating section 223, and a distance between the arc path and the rotating portion 21 is a certain value. The matching part 42 starts to slide at the starting section 223, and the starting section 223 plays a role in adjusting the sliding rhythm of the matching part 42 to be more consistent, so that the movement of the matching part 42 when sliding into the curve driving section 222 is more consistent, and the radial telescopic movement of the buckle 41 is more stable. Preferably, the actuating section 223 is a straight line section and is tangent to the curved driving section 222, so that the connection between the actuating section 223 and the curved driving section 222 is smoother, and the resistance to the movement of the fitting part 42 is more favorably reduced. Of course, in other embodiments, the actuating segment 223 may also be a circular arc segment.
In the embodiment of the present invention, the position relationship among the curve driving segment 222, the chute ineffective stroke segment 221 and the starting segment 223 is not limited, for example, the curve driving segment 222 may be located between the chute ineffective stroke segment 221 and the starting segment 223, the chute ineffective stroke segment 221 may be located between the curve driving segment 222 and the starting segment 223, or the starting segment 223 may be located between the curve driving segment 222 and the chute ineffective stroke segment 221.
In the above embodiment, the guide groove 23 has the effective stroke section 231, and the distance between the effective stroke section 231 and the rotating portion 21 is gradually changed, so that when the sliding portion 82 of the self-locking assembly 8 slides along the effective stroke section 231, the self-locking assembly 8 can be extended and retracted along the radial direction to shield or expose the float hole 15. The effective stroke section 231 is a straight line section, an arc section, a sine curve section or a cosine curve section. When effective stroke section 231 is the circular arc section, the centre of a circle of this circular arc section sets up with the centre of a circle of rotating part 21 staggers.
The guide slot 23 further includes a guide slot idle stroke section 232, an arc path for the sliding portion 82 of the self-locking assembly 8 to slide is defined from one end of the guide slot idle stroke section 232 to the other end, and a distance between the arc path and the rotating portion 21 is also a certain value, so that when the sliding portion 82 slides in the guide slot idle stroke section 232, the self-locking assembly 8 does not horizontally displace.
In an embodiment, the guiding groove invalid stroke section 232 is an arc section, and a distance between the guiding groove invalid stroke section 232 and the rotating portion 21 is a certain value. In this embodiment, an arc path for the sliding portion 82 of the self-locking assembly 8 to slide is defined from one end of the guide slot idle stroke section 232 to the other end of the guide slot idle stroke section 232, a distance between the arc path and the rotating portion 21 is a certain value, and the sliding portion 82 does not horizontally displace when sliding along the arc path. In this embodiment, the sliding portion 82 of the self-locking assembly 8 is in clearance fit with the two long sidewalls of the guide slot invalid stroke section 232, and a sufficient clearance is reserved between the two long sidewalls and the fitting portion 42, so as to ensure that a stroke track of the sliding portion 82 when passing through the sliding slot invalid stroke section 221 is an arc, that is, the sliding portion 82 is not stressed at this time, and the self-locking assembly 8 has no displacement in a horizontal direction.
In other embodiments, the guiding groove invalid stroke section 232 is a straight line section and is tangent to the valid stroke section 231, so that the connection of the two sections is smoother.
When the rotating guide plate 2 rotates, in order to make the buckle assembly 4 driven by the sliding groove 22 and the self-locking assembly 8 driven by the guide groove 23 stagger and bear force, and avoid the unsmooth rotating movement caused by the simultaneous movement of the two assemblies, in an embodiment, the curve driving section 222 corresponds to the guide groove invalid stroke section 232, so that when the matching portion 42 of the buckle 41 slides to the curve driving section 222, the sliding portion 82 of the self-locking assembly 8 slides to the guide groove invalid stroke section 232, the curve driving section 222 of the sliding groove 22 and the guide groove invalid stroke section 232 of the guide groove 23 work in a matching manner, at this time, the buckle 41 driven by the sliding groove 22 can be opened and closed, and the self-locking assembly 8 is not stressed. The sliding groove ineffective stroke section 221 corresponds to the effective stroke section 231, so that when the matching portion 42 of the buckle 41 is located in the sliding groove ineffective stroke section 221, the sliding portion 82 of the self-locking assembly 8 is located in the effective stroke section 231, the sliding groove ineffective stroke section 221 is matched with the effective stroke section 231 of the guide groove 23, the self-locking assembly 8 moves horizontally, and the buckle 41 is not stressed.
Specifically, when the rotating guide plate 2 rotates from the head end to the tail end, the engaging portion 42 of the engaging member 41 slides along the sliding groove 22 from the tail end to the head end, and the sliding portion 82 of the self-locking assembly 8 slides from the guide groove idle stroke section 232 to the active stroke section 231. Firstly, the sliding part 82 of the self-locking assembly 8 slides in the guide groove invalid stroke section 232 without horizontal displacement; at this time, the engaging portion 42 slides from the starting section 223 and slides into the curve driving section 222, and the engaging portion 42 is pressed inward in the curve driving section 222 to move inward in the radial direction and drive the buckle 41 to move inward. Then, when the engaging portion 42 slides to the head end, the buckle 41 is finally locked to hold the lid and the pot body. When the engaging portion 42 slides from the head end into the chute ineffective stroke section 221 and continues to slide in the chute ineffective stroke section 221, the engaging portion 42 makes an arc motion without displacement in the radial direction, and at this time, the sliding portion 82 slides into the effective stroke section 231 and horizontally moves away from the float hole 15 by the outward pressing force of the long side wall of the effective stroke section 231, so as to expose the float hole 15. Finally, the engaging portion 42 abuts against the short side wall of the chute ineffective stroke section 221, and/or the sliding portion 82 abuts against the short side wall of the effective stroke section 231, so as to limit the rotation of the swing-closing guide plate 2.
When the rotating-closing guide plate 2 moves reversely, that is, when the rotating-closing guide plate 2 rotates from the tail end to the head end, the engaging portion 42 of the buckle 41 slides along the sliding groove 22 from the head end to the tail end, and the sliding portion 82 of the self-locking assembly 8 slides from the active stroke section 231 to the guide-groove inactive stroke section 232. First, the engaging portion 42 of the latch 41 is not radially displaced in the chute idle stroke section 221, and the sliding portion 82 of the self-locking assembly 8 is pressed inward in the active stroke section 231 and horizontally moves close to the float hole 15 to shield the float hole 15. Subsequently, when the sliding portion 82 slides into the guiding groove idle stroke section 232, the sliding portion 82 stops moving radially, and at this time, the engaging portion 42 slides into the curved driving section 222 and is radially moved away from the rotating portion 21 by the outward pressing force of the curved driving section 222, so as to unlock the lid and the pot body until the engaging portion 42 slides to the tail end. Then, the fitting portion 42 slides into the starting section 223 without radial displacement in the starting section 223 until the fitting portion 42 abuts against the short sidewall of the starting section 223 and/or the sliding portion 82 slides against the short sidewall of the guide groove ineffective stroke section 232, thereby limiting the rotation of the spin-on guide plate 2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. A pot cover assembly is characterized by comprising an elliptical pot cover for covering an elliptical pot body, a screwing guide plate and a buckle assembly, wherein the screwing guide plate and the buckle assembly are mounted on the upper surface of an inner cover of the pot cover; the buckle assembly comprises a buckle for locking the pot body and a matching part which is connected with the buckle and is slidably mounted with the chute, the buckle is in an oval shape matched with the periphery of the pot cover, and the matching part can slide in the chute under the drive of the rotation of the screwing guide plate so as to drive the buckle to stretch and move along the radial direction of the rotating part;
the buckle assembly further comprises a guide plate extending along the radial direction of the rotating part, the buckle is fixedly connected with the guide plate, and the matching part is arranged on the guide plate; the inner cover is provided with a guide rail, the extending direction of which is parallel to the radial telescopic direction of the buckle assembly, and the guide plate is slidably arranged on the guide rail.
2. The pot cover assembly of claim 1, wherein the guide plate comprises a body extending along the radial direction of the rotating portion, two sides of the body extending along the radial direction of the rotating portion are respectively turned upwards to form an upward turning portion, and the upper ends of the two upward turning portions are turned backwards to form two side wings; the guide rail comprises two supporting bars and two limiting plates, the two supporting bars and the two limiting plates are arranged on the upper surface of the inner cover, the two limiting plates are located between the two supporting bars, the extending directions of the two limiting plates and the two supporting bars are parallel to the radial telescopic direction of the buckle assembly, and the heights of the limiting plates are lower than the heights of the supporting bars; the two side wings are arranged on the two support bars corresponding to the sliding frames, and the two upward turning parts are respectively correspondingly abutted against the opposite inner sides of the two limit plates.
3. The lid assembly of claim 1 or 2, wherein the sliding groove has a curved driving section, and the distance between the curved driving section and the rotating section is gradually changed, so that the engaging portion slides along the curved driving section, and the engaging portion is retractable along the radial direction of the rotating section.
4. The lid assembly of claim 3, wherein the curved drive section is arranged in a sine curve or a cosine curve.
5. The pot cover assembly of claim 3, further comprising a self-locking assembly, wherein the self-locking assembly comprises a blocking portion and a sliding portion connected to the blocking portion and extending upward, a guide groove for the sliding portion to be slidably mounted is formed in the rotary-closing guide plate, the guide groove is provided with an effective stroke section, and the distance between the effective stroke section and the rotating portion is gradually changed, so that when the sliding portion slides along the effective stroke section, the blocking portion horizontally stretches and moves.
6. The lid assembly according to claim 5, wherein the inner lid has a guide groove for the shielding portion to slide, and the guide groove is elongated along the sliding direction of the shielding portion.
7. The pot cover assembly of claim 6, wherein the shielding portion comprises a guiding portion, a shielding plate and a connecting rod connecting the guiding portion and the shielding plate, the sliding portion is mounted on the guiding portion, the guiding portion is slidably mounted in the guiding groove, and the connecting rod and the shielding plate are extended out of the guiding groove from an inner end wall of the guiding groove.
8. The lid assembly of claim 5, wherein the effective travel section is a straight section, a circular section, a sinusoidal section, or a cosine section.
9. The lid assembly according to claim 5, wherein the sliding groove further comprises a sliding groove inactive stroke section, the guiding groove further comprises a guiding groove inactive stroke section, the curve driving section corresponds to the guiding groove inactive stroke section, so that when the engaging portion of the buckle slides to the curve driving section, the sliding portion of the self-locking assembly slides to the guiding groove inactive stroke section, and the sliding groove inactive stroke section corresponds to the active stroke section, so that when the engaging portion of the buckle is in the sliding groove inactive stroke section, the sliding portion of the self-locking assembly is in the active stroke section.
10. The lid assembly according to claim 9, wherein the sliding groove lost motion section is provided at one end of the curved driving section, the sliding groove lost motion section is linearly arranged and tangent to the curved driving section, an arc path for the engaging portion of the latch to slide is defined from one end of the sliding groove lost motion section to the other end of the sliding groove lost motion section, and a distance between the arc path and the rotating portion is a constant value.
11. The lid assembly of claim 10, wherein the curved driving section includes a head end and a tail end, the head end is spaced from the rotating portion by a smaller distance than the tail end, and the sliding slot lost motion section is disposed at the head end.
12. The lid assembly of claim 11, wherein the angle between the inactive travel section of the sliding groove and the radial direction of the latch is 60 to 120 degrees.
13. The lid assembly according to claim 11, wherein a starting section is provided at a rear end of the curved driving section, an arc path for the engaging portion of the latch to slide is defined from one end of the starting section to the other end of the starting section, and a distance between the arc path and the rotating portion is a constant value.
14. The lid assembly according to claim 9, wherein the guiding groove lost motion section is formed in an arc shape, and a distance between the guiding groove lost motion section and the rotating part is a constant value.
15. A pressure cooker, characterized in that the pressure cooker comprises a lid assembly according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570510.1A CN107625410B (en) | 2016-07-18 | 2016-07-18 | Pot cover subassembly and pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570510.1A CN107625410B (en) | 2016-07-18 | 2016-07-18 | Pot cover subassembly and pressure cooker |
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| Publication Number | Publication Date |
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| CN107625410A CN107625410A (en) | 2018-01-26 |
| CN107625410B true CN107625410B (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610570510.1A Active CN107625410B (en) | 2016-07-18 | 2016-07-18 | Pot cover subassembly and pressure cooker |
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| Publication number | Publication date |
|---|---|
| CN107625410A (en) | 2018-01-26 |
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